[GRASS-user] areas with no centroid

[Dave Roberts]

Thanks Helmut

v.extract demo cats=1-100 out=new

worked like a charm!  Sorry I missed your point the first time.

Dave

On 11/27/16 23:46, Helmut Kudrnovsky wrote:
>> Thanks for the suggestion, but the area with no centroid doesn't
>> have a cat.
>
> that's exactly what I've meant.
>
> then do v.extract cats="cats of the polygones with cat" to extract only
> these polygones you need.
>
> from the v.extract manual :
>
> cats=range
> Category values
> Example: 1,3,7-9,13
>
>
>
>
> -----
> best regards
> Helmut
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